TROUBLESHOOTING
Continued
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | ||
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Burner does not light after ODS/ | 1. Burner orifice clogged | 1. | Clean burner (see Cleaning | |
pilot is lit |
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| and Maintenance, page 14) or |
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| replace burner orifice |
| 2. | Inlet gas pressure is too low | 2. | Contact local natural or pro- |
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| pane/LP gas company |
Delayed ignition burner | 1. Manifold pressure is too low | 1. | Contact local natural or pro- | |
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| pane/LP gas company |
| 2. | Burner orifice clogged | 2. | Clean burner (see Cleaning |
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| and Maintenance, page 14) or |
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| replace burner orifice |
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Burner backfiring during com- | 1. Burner orifice is clogged or | 1. | Clean burner (see Cleaning | |
bustion |
| damaged |
| and Maintenance, page 14) or |
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| replace burner orifice |
| 2. | Damaged burner | 2. | Replace damaged burner |
| 3. | Gas regulator defective | 3. | Replace gas control |
Slight smoke or odor during initial | 1. Not enough air | 1. | Check burner for dirt and | |
operation |
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| debris. If found, clean burner |
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| (see Cleaning and Mainte- |
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| nance, page 14) |
| 2. | Gas regulator defective | 2. | Replace gas control |
| 3. | Residues from manufacturing | 3. | Problem will stop after a few |
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| processes and logs curing |
| hours of operation |
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Moisture/condensation noticed | 1. Not enough combustion/ven- | 1. | Refer to Air for Combustion | |
on windows |
| tilation air |
| and Ventilation requirements |
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| (page 5) |
Heater produces a whistling noise | 1. Turning control knob to HI | 1. | Turn control knob to LO position | |
when burner is lit |
| position when burner is cold |
| and let warm up for a minute |
| 2. | Air in gas line | 2. | Operate burner until air is |
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| removed from line. Have gas |
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| line checked by local natural |
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| or propane/LP gas company |
| 3. | Air passageways on heater | 3. | Observe minimum installation |
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| blocked |
| clearances (see page 8) |
| 4. | Dirty or partially clogged | 4. | Clean burner (see Cleaning |
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| burner orifice |
| and Maintenance, page 14) or |
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| replace burner orifice |
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Dark residue on logs or inside | 1. Improper log placement | 1. | Properly locate logs (see In- | |
of fireplace |
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| stalling Log Set, page 12) |
| 2. | Drafts or other air currents | 2. | Eliminate source of drafts |
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| affecting flame pattern |
| around heater |
| 3. | Air holes at burner inlet | 3. | Clean out air holes at burner |
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| blocked |
| inlet. Periodically repeat as |
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| needed |
| 4. | Burner flame holes blocked | 4. | Remove blockage |
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White powder residue forming | 1. When heated, vapors from | 1. | Turn heater off when using | |
within burner box or on adjacent |
| furniture polish, wax, carpet |
| furniture polish, wax, carpet |
walls or furniture |
| cleaners, etc. may turn into |
| cleaners or similar products |
white powder residue
www.desatech.com | 17 |
